a couple of books that discuss erlang implementations of non-trivial distributing computing objects.

Ericsson open sourced its software switching infrastructure, somewhat like AT&T Bell Labs
open sourcing Plan9. It's different because Ericsson actually produced real products using
Erlang. Ericsson openly endorses Erlang - OTP systems:[1]
What other open source language do you know that is used by a corporation to build the AXE 301, a 512K cross connect switch that can achieve throughputs of 160Gbs.
[2]